Accessing a family member's phone remotely

Good Afternoon,

I'm looking for suggestions/advice on how I can remotely tap into my grandmother's phone. I live out of state and my parents are not tech savvy. My grandmother is 85 hasn't really grasp how the iPhone works. I know there are basic phones that could have avoided this situation, but she wanted an iPhone so here I sit.

My Grandmother calls often siting issues with her phone and due to her lack of knowledge, she's also been charged for things she shouldn't because she's accidently touched something. She was recently charged for a 411 call??? I didn't even know that still existed.

She often doesn't update her phone or her apps and I'd like to be able to remotely do that.

In the past I've called Apple for help and they've been able to remotely access my phone (with my permission) and were able to go through my phone to check on an issue I was having. I'm looking for the same capability.

Is this capability available outside of Apple customer service?